Seonglae ChoIn Cooperative Game Theory
Named after Lloyd Shapley who introduced it in 1951 and was awarded the Nobel Prize in Economics in 2012
Quantifies the average contribution of a player by calculating its marginal contribution when added to various player combinations (coalition). Considers all possible player orderings to fairly distribute credit for model predictions. While computationally expensive, it provides a fair method to distribute how much each player contributes to model predictions.
Shapley value
In cooperative game theory, the Shapley value is a method for fairly distributing the total gains or costs among a group of players who have collaborated. For example, in a team project where each member contributed differently, the Shapley value provides a way to determine how much credit or blame each member deserves. It was named in honor of Lloyd Shapley, who introduced it in 1951 and won the Nobel Memorial Prize in Economic Sciences for it in 2012.
https://en.wikipedia.org/wiki/Shapley_value
